A robot for processing piston rods

Abstract

The present invention relates to the technical field of clamping tools, and specifically to a robot for piston rod processing, comprising a rotating shaft sleeve fixedly installed at the bottom of an XYZ three-axis moving platform, a swing shaft rotatably connected in the rotating shaft sleeve, a connecting block fixedly connected to the side of the swing shaft away from the XYZ three-axis moving platform, a first driving motor fixedly installed on the surface of the rotating shaft sleeve, an output shaft of the first driving motor is fixedly connected to the rotating shaft part of the swing shaft, and the first clamping plate is fixedly fixed after adjustment by changing the central angle of the circle corresponding to the structure composed of a rectangular sliding frame and a first clamping plate, and by the reverse rotation of a pressure ring and a hexagonal nut, the first clamping plate is fixed after adjustment, and similarly, the second clamping plate and the second circular sleeve are rotated and adjusted by the rotation and reverse rotation of the pressure ring and the hexagonal nut on the bolt, and a V-shaped structure with different angles is formed by the cooperation of the first clamping plate and the second clamping plate, so as to realize the clamping of the diameter piston rod, thereby greatly improving the range of clamping the piston rod and having strong universality.

Description

Technical Field

[0001] The invention relates to the technical field of clamping tools, in particular to a robot for processing piston rods. Background Art

[0002] The piston rod is a connecting component that supports the piston to do work. It is mostly used in oil cylinders and cylinder motion actuators. It is a moving component that moves frequently and has high technical requirements. The quality of its processing directly affects the life and reliability of the entire product.

[0003] The general steps of piston rod processing are as follows: processing preparation, material cutting, surface treatment, precision machining, inspection and quality control.

[0004] The processing of piston rods mainly includes turning, milling and grinding. Turning is one of the most common cutting processes. It uses a rotating tool to cut materials to obtain the required shape and size. When processing piston rods, a robot is needed to clamp the processing materials of the piston rod for transportation or to assist in the cutting of the piston rod. The conventional clamping method is to supply air through an air pump to adsorb the piston rod on the clamping part. However, when facing piston rods of different diameters, the equipment requires a clamping head of a more corresponding size to ensure the clamping effect. This method only fixes one side of the piston rod, and the fixing effect of the piston rod depends on the size of the suction force. When the end of the piston rod is under pressure, the suction force in the middle part of the piston rod is insufficient, and the piston rod is easy to fall off or shake from the clamping head. The piston rod processing cannot be directly processed on the clamping head. In order to solve this problem, a new type of robot for piston rod processing is proposed. Summary of the invention

[0005] The object of the present invention is to provide a piston rod processing robot to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a piston rod processing robot comprises a rotating shaft sleeve fixedly installed at the bottom of an XYZ three-axis movable platform, a swing shaft is rotatably connected in the rotating shaft sleeve, a connecting block is fixedly connected to the side of the swing shaft away from the XYZ three-axis movable platform, a first driving motor is fixedly installed on the surface of the rotating shaft sleeve, an output shaft of the first driving motor is fixedly connected to the rotating shaft part of the swing shaft, a fixed shaft seat is fixedly installed on the side of the connecting block away from the swing shaft, a second driving motor is arranged in the connecting block, an output shaft of the second driving motor is fixedly connected to the fixed shaft seat, an assembly frame is fixedly installed on the side of the fixed shaft seat away from the connecting block, a rectangular sliding frame is movably sleeved on the assembly frame, and a positioning frame is fixedly installed on the surface of the rectangular sliding frame A positioning frame in the assembly frame, the assembly frame is rotatably connected with a positive and negative screw rod, and the positive and negative screw rod is threadedly connected to the positioning frame, a third drive motor is arranged on the surface of the assembly frame, and the output shaft of the third drive motor is fixedly connected to the positive and negative screw rod, a fixed plate is fixedly installed at the bottom of the rectangular sliding frame, a screw rod is fixedly installed at the central axis position of the fixed plate, a first circular sleeve is sleeved on the screw rod, a first clamping plate is arranged at the bottom of the first circular sleeve, a pressure ring and a hexagonal nut are threadedly connected on the screw rod, a second circular sleeve is fixedly installed on the bottom of the first clamping plate, a bolt is movably inserted in the second circular sleeve, a rotating ring is movably sleeved outside the bolt, a second clamping plate is fixedly installed on the bottom of the rotating ring, and a pressure ring and a hexagonal nut are also threadedly connected outside the bolt.

[0007] Preferably, a limiting rod is fixedly mounted on the bottom of the second clamping plate, and the limiting rod and the second clamping plate are arranged parallel to each other.

[0008] Preferably, a limit block is fixedly installed on the surface of the pressure ring.

[0009] Preferably, the screw rod and the bolt are both composed of a threaded portion and a non-threaded portion.

[0010] Preferably, the length, width and thickness of the first clamping plate and the second clamping plate are the same.

[0011] Preferably, a limit block is fixedly installed at the bottom of the fixed shaft seat, and the limit block is located in the assembly frame. A positioning swivel is fixedly installed at the center position of the forward and reverse screw rods, and the forward and reverse screw rods and the positioning swivel are all rotatably connected to the limit block.

[0012] Preferably, side frames are provided on both sides of the assembly frame, a lifting frame is movably inserted in the side frame, a height adjustment rod is threadedly connected to the lifting frame, a driving roller is rotatably connected to the bottom of the lifting frame, a fourth driving motor is provided in the lifting frame, an output shaft of the fourth driving motor is connected to a driven wheel through a transmission belt, and the driven wheel is located in the lifting frame and is transmission-connected to the driving roller.

[0013] Preferably, the driving roller and the driven wheel are coaxially arranged, and the driven wheel passes through the lifting frame and is connected to the rotating shaft portion of the driving roller.

[0014] Preferably, the XYZ three-axis mobile platform is installed on the main mounting frame, and another group of XYZ three-axis mobile platforms is also arranged on the main mounting frame, a connecting column is arranged at the bottom of the group of XYZ three-axis mobile platforms, a V-shaped support frame is arranged on the surface of the connecting column, and a limiting baffle is arranged at one end of the V-shaped support frame away from the connecting column.

[0015] Preferably, both ends of the XYZ three-axis mobile platform are slidably mounted on the main mounting frame, and a fifth driving motor is provided at both ends of the XYZ three-axis mobile platform. A driving gear is fixedly mounted on the output shaft of the fifth driving motor, and a rack corresponding to the driving gear is provided in a positioning groove opened on the main mounting frame, and a pulley is rotatably connected to the bottom of the driving gear, and the pulley is slidably connected in a guide groove opened on the positioning groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The output shaft of the third driving motor drives the positive and negative screws to rotate, and the positions of the two adjustment frames are changed by the rotation of the positive and negative screws. During the rotation of the positive and negative screws, the two adjustment frames are driven to approach or move away from each other. The approach or distance of the adjustment frames drives the rectangular sliding frame to move on the assembly frame. The first clamping plate and the second clamping plate form a structure that approaches each other to clamp the piston rod, and the first clamping plate and the second clamping plate form a structure that moves away from each other to place the piston rod;

[0018] According to the diameter of the piston rod, the angles of the first clamping plate and the second clamping plate are adjusted respectively. By rotating the pressure ring and the hexagonal nut in reverse, the structure composed of the pressure ring and the hexagonal nut is loosened from the screw rod, and the first circular sleeve can be rotated outside the screw rod to change the central angle of the rectangular sliding frame and the first clamping plate structure. The first clamping plate is fixed after adjustment by the reverse rotation of the pressure ring and the hexagonal nut. Similarly, the second clamping plate and the second circular sleeve are adjusted after rotation by rotating and reversely rotating the pressure ring and the hexagonal nut on the bolt. Through the cooperation of the first clamping plate and the second clamping plate, a V-shaped structure with different angles is formed to clamp the diameter of the piston rod, which greatly improves the range of clamping the piston rod and has strong universality.

[0019] 2. The output shaft of the first drive motor drives the swing shaft to rotate in the rotating shaft sleeve, changing the angle between the connecting block and the XYZ three-axis moving platform. By rotating the second drive motor in the connecting block, the angle between the assembly frame and the connecting block is changed, so that the piston rod can be placed horizontally or vertically, which greatly improves the clamping effect of the piston rod. It can clamp horizontal piston rods or vertical piston rods, and can also allow the piston rod to be processed in a horizontal or vertical shape, making the clamping more convenient and the clamping flexibility greatly improved;

[0020] 3. Change the height of the lifting frame by turning the height adjustment rod. During the rotation of the height adjustment rod, the driving roller will change its upper and lower position height to adapt to piston rods of different diameters and ensure that the driving roller can contact the side of the piston rod. The first clamping plate and the second clamping plate slightly loosen the piston rod, and the piston rod is fixed by the friction force of contact with the driving roller. The driven wheel and the driving roller are driven to rotate by the output shaft of the fourth driving motor. During the rotation of the driving roller, the piston rod is driven to move in the structure composed of the first clamping plate and the second clamping plate. During the movement of the piston rod in the structure composed of the first clamping plate and the second clamping plate, the cutting tool can process different positions of the piston rod at the specified position, and the flexible movement of the piston rod can better cooperate with the cutting tool, thereby completing the processing of more complex shapes and structures and expanding the processing possibilities of the piston rod.

[0021] 4. The output of the fifth driving motor drives the rotation of the driving gear, and the driving gear is meshed with the rack, thereby driving the driving gear to move in the adjustment slot. During the movement of the driving gear, a pulling force is applied to the pulley. After being subjected to the pulling force, the pulley will slide in the guide slot along the guide of the guide slot. At the same time, the top of the pulley is rotationally connected to the driving gear, which does not affect the normal rotation of the driving gear. The position of the XYZ three-axis mobile platform is changed by the sliding of the pulley, and the XYZ three-axis mobile platform moves to the specified position for clamping operations and piston rod handling operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a side view structural schematic diagram of the present invention.

[0023] Figure 2 It is a schematic diagram of the top structure of the present invention.

[0024] Figure 3 It is a rear view structural schematic diagram of the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the XYZ three-axis mobile platform of the present invention.

[0026] Figure 5 It is a structural schematic diagram of the pulley corresponding to the position of the present invention.

[0027] Figure 6 It is a structural schematic diagram of the corresponding position of the limiting plate of the present invention.

[0028] Figure 7 It is a structural schematic diagram of the corresponding position of the first drive motor of the present invention.

[0029] Figure 8 It is a structural schematic diagram of the corresponding position of the assembly stand of the present invention.

[0030] Fig. 9 It is a schematic diagram of the structure at the corresponding position of the swing shaft of the present invention.

[0031] Fig.10 It is a structural schematic diagram of the corresponding position of the fixed shaft seat of the present invention.

[0032] Fig.11 It is a schematic diagram of the structure at corresponding positions of the positive and negative threaded screws of the present invention.

[0033] Fig.12 It is a schematic diagram of the driving roller structure of the present invention.

[0034] Fig.13 It is a structural schematic diagram of the first clamping plate and the second clamping plate at corresponding positions of the present invention.

[0035] Fig.14 It is a schematic diagram of the structure at the corresponding position of the rotating ring of the present invention.

[0036] In the figure: 1, XYZ three-axis moving platform; 2, rotating shaft sleeve; 3, swing shaft; 4, connecting block; 5, first driving motor; 6, fixed shaft seat; 7, second driving motor; 8, assembly frame; 9, rectangular sliding frame; 10, adjustment frame; 11, positive and negative thread screw; 12, third driving motor; 13, fixed plate; 14, screw; 15, first circular sleeve; 16, first clamping plate; 17, pressure ring; 18, hexagonal nut; 19, second circular sleeve; 20, bolt; 21, rotating ring; 22. Second clamping plate; 23. Limit rod; 24. Limit block; 2401. Positioning swivel; 25. Side frame; 26. Lifting frame; 27. Height adjustment swivel; 28. Driving roller; 29. ​​Fourth driving motor; 30. Transmission belt; 31. Driven wheel; 32. Main mounting frame; 3201. Positioning slide; 3202. Guide slide; 33. Connecting column; 34. V-shaped support frame; 35. Limit baffle; 36. Fifth driving motor; 37. Driving gear; 38. Rack; 39. Pulley. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figures 1 to 14The present invention provides a technical solution: a piston rod processing robot, comprising a rotating shaft sleeve 2 fixedly mounted on the bottom of an XYZ three-axis mobile platform 1, the rotating shaft sleeve 2 is provided with a hole corresponding to the rotating shaft, and there are two rotating shaft sleeves 2 at the bottom of the XYZ three-axis mobile platform 1, a limiting structure is formed by the two rotating shaft sleeves 2, which are sleeved on the rotating shaft of a swing shaft 3, and the hole on the rotating shaft sleeve 2 corresponds to the rotating shaft on the swing shaft 3, so that the swing shaft 3 can rotate stably in the rotating shaft sleeve 2, the rotating shaft sleeve 2 is rotatably connected with the swing shaft 3, the swing shaft 3 and the rotating shaft sleeve 2 are coaxially arranged, so as to ensure the rotation trajectory of the swing shaft 3 in the rotating shaft sleeve 2 and the rotation stability of the swing shaft 3, the side of the swing shaft 3 away from the XYZ three-axis mobile platform 1 is fixedly connected with a connecting block 4, the swing shaft 3 and the connecting block 4 are fixedly connected, and the swing shaft 3 and the connecting block 4 are fixedly connected. The connecting block 4 is connected together, and the swing shaft 3 and the connecting block 4 form a structure that swings together. The first driving motor 5 is fixedly installed on the surface of the rotating shaft sleeve 2. The output shaft of the first driving motor 5 is fixedly connected to the rotating shaft of the swing shaft 3, so that the swing shaft 3 can rotate in the rotating shaft sleeve 2, so as to realize the change of the vertical plane angle of the structure composed of the connecting block 4 and the swing shaft 3. The output shaft of the first driving motor 5 is fixedly connected to the rotating shaft part of the swing shaft 3. A fixed shaft seat 6 is fixedly installed on the side of the connecting block 4 away from the swing shaft 3. A second driving motor 7 is arranged in the connecting block 4. The output shaft of the second driving motor 7 is fixedly connected to the fixed shaft seat 6. The fixed shaft seat 6 and the connecting block 4 are rotated as the center through the rotation of the output shaft of the second driving motor 7, thereby changing the water level of the fixed shaft seat 6 and the assembly frame 8. At a flat plane angle, a second drive motor 7 is arranged in the connecting block 4, and the output shaft of the second drive motor 7 is fixedly connected to the fixed shaft seat 6. The output shaft of the second drive motor 7 is fixed at the center position of the surface of the fixed shaft seat 6 to ensure the stability of the fixed shaft seat 6 during rotation. An assembly frame 8 is fixedly installed on the side of the fixed shaft seat 6 away from the connecting block 4. The assembly frame 8 is a frame with a rectangular hollow structure. The assembly frame 8 with a hollow structure is used to install different objects. The rectangular structure can ensure the sliding stability of the rectangular sliding frame 9, and the sliding trajectory remains constant. A rectangular sliding frame 9 is movably sleeved on the assembly frame 8. The rectangular sliding frame 9 is a rectangular frame. A positioning frame 10 located in the assembly frame 8 is fixedly installed on the surface of the rectangular sliding frame 9. The positioning frame 10 is an inclined plate, and the positioning frame 10 and the limit block 24 have the same inclination angle, the adjustment frame 10 and the limit block 24 can be closer to each other, the assembly frame 8 is rotatably connected with the positive and negative screw rods 11, and the positive and negative screw rods 11 are threadedly connected to the adjustment frame 10, and the adjustment frame 10 is provided with two opposite threads to ensure that the third drive motor 12 drives the positive and negative screw rods 11 to rotate, so that the two adjustment frames 10 move in directions close to or away from each other, the assembly frame 8 is provided with a third drive motor 12 on the surface, and the output shaft of the third drive motor 12 is fixedly connected to the positive and negative screw rods 11, and the positive and negative screw rods 11 are driven to rotate by the output shaft of the third drive motor 12, and a fixed plate 13 is fixedly installed at the bottom of the rectangular sliding frame 9, and a screw rod 14 is fixedly installed at the central axis position of the fixed plate 13.The screw rod 14 is installed at a position corresponding to the central axis of the fixed plate 13. The fixed plate 13 and the screw rod 14 are fixedly arranged. The first circular sleeve 15 is sleeved on the screw rod 14 and is located below the rectangular sliding frame 9. The first circular sleeve 15 is rotated on the screw rod 14 to change the angle of the first circular sleeve 15 and the first clamping plate 16. The screw rod 14 and the bolt 20 are composed of a threaded portion and an unthreaded portion. The unthreaded portion of the screw rod 14 and the first circular sleeve 15 rotate to form a friction force. The screw rod 14 is smaller, and a threaded portion is provided on the screw rod 14 to mesh with a hexagonal nut 18 to ensure the rotation of the screw rod 14. A first circular sleeve 15 is sleeved on the screw rod 14, and a first clamping plate 16 is provided at the bottom of the first circular sleeve 15. A pressure ring 17 and a hexagonal nut 18 are threadedly connected on the screw rod 14. The pressure ring 17 and the hexagonal nut 18 are an integrally formed structure. The pressure ring 17 is used to apply pressure to the first circular sleeve 15 to achieve the fixation of the first circular sleeve 15 and the first clamping plate 16 after rotation, ensuring that the first circular sleeve The fixing effect after adjusting 15 and the first clamping plate 16 is achieved by cooperating with the hexagonal nut 18 and the wrench to assist the rotation of the pressure ring 17 to control the rotation of the pressure ring 17 and the hexagonal nut 18, and a manual rotation part is provided on the pressure ring 17 to further assist the rotation of the pressure ring 17 and the hexagonal nut 18. A second circular sleeve 19 is fixedly installed at the bottom of the first clamping plate 16, and a bolt 20 is movably inserted in the second circular sleeve 19. A rotating ring 21 is movably sleeved outside the bolt 20 to rotate. A second clamping plate 22 is fixedly installed at the bottom of the ring 21. The rotating ring 21 and the second clamping plate 22 are integrally formed. The angle of the second clamping plate 22 is changed by rotating the rotating ring 21 on the bolt 20. In this way, the first clamping plate 16 and the second clamping plate 22 cooperate to form a V-shaped structure for clamping the piston rod. The bolt 20 is also threadedly connected with a pressure ring 17 and a hexagonal nut 18. The same structure is used to fix the adjusted second clamping plate 22 and the second circular sleeve 19.

[0039] A limiting rod 23 is fixedly installed at the bottom of the second clamping plate 22, and the limiting rod 23 and the second clamping plate 22 are arranged parallel to each other. The length of the limiting rod 23 is greater than the width of the second clamping plate 22. By increasing the length of the limiting rod 23, the contact area with the piston rod is increased, thereby ensuring the clamping and fixing effect of the piston rod.

[0040] The length, width and thickness of the first clamping plate 16 and the second clamping plate 22 are the same, so that the first clamping plate 16 and the second clamping plate 22 form a vertically symmetrical structure, and the first clamping plate 16 and the second clamping plate 22 form a clamping structure corresponding to the piston rod;

[0041] A limit block 24 is fixedly installed at the bottom of the fixed shaft seat 6, and the limit block 24 limits the rotation of the positive and negative threaded rods 11 and supports the center position of the positive and negative threaded rods 11 to ensure the rotation stability of the positive and negative threaded rods 11. The limit block 24 is located in the assembly frame 8, and a positioning swivel 2401 is fixedly installed at the center position of the positive and negative threaded rods 11, and the positioning swivel 2401 is fixedly sleeved outside the positive and negative threaded rods 11. A groove corresponding to the positioning swivel 2401 is opened in the limit block 24 to ensure the rotation stability of the positioning swivel 2401 and the positive and negative threaded rods 11. The positive and negative threaded rods 11 and the positioning swivel 2401 are all rotatably connected with the limit block 24;

[0042] Both sides of the assembly frame 8 are provided with side frames 25, and two holes are vertically provided on the side frames 25 for the lifting frame 26 to slide up and down in the side frames 25. The lifting range of the lifting frame 26 has a certain range, and a groove corresponding to the positioning block at the center position of the side frame 25 is provided on the lifting frame 26. The lifting frame 26 is movably inserted in the side frame 25, and the lifting frame 26 is threadedly connected with a height adjustment rod 27, which rotates on the lifting frame 26, and the height adjustment rod 27 is threadedly connected to the side frame 25. The side frame 25 is pressed by the rotation of the height adjustment rod 27, thereby driving the lifting frame 26 to rise and fall in the side frame 25, and the bottom of the lifting frame 26 is rotatably connected with a driving roller 28, and the driving roller 28 is in contact with the surface of the piston rod, and the piston rod is connected to the driving roller 28 by rolling, and the piston rod is driven to move by the rotation of the driving roller 28. A fourth driving motor 29 is arranged in the lifting frame 26, and a driven wheel 31 is connected to the output shaft of the fourth driving motor 29 by a transmission belt 30. The driven wheel 31 is located in the lifting frame 26 and is connected to the driving roller 28 by transmission. The output of the fourth driving motor 29 drives the transmission belt 30 to rotate, thereby driving the driven wheel 31 to rotate, and the driving roller 28 is driven to rotate in the lifting frame 26 by the rotation of the driven wheel 31, so that the driving roller 28 drives the piston rod to move in the clamping structure corresponding to the piston rod composed of the first clamping plate 16 and the second clamping plate 22;

[0043] The driving roller 28 and the driven wheel 31 are coaxially arranged, and the driven wheel 31 penetrates the lifting frame 26 and is connected to the rotating shaft of the driving roller 28 to ensure the normal rotation of the driven wheel 31 and the driving roller 28;

[0044] The XYZ three-axis mobile platform 1 is installed on the main mounting frame 32, and another group of XYZ three-axis mobile platforms 1 is also arranged on the main mounting frame 32. The bottom of the group of XYZ three-axis mobile platforms 1 is provided with a connecting column 33, and a V-shaped support frame 34 is provided on the surface of the connecting column 33. A limit baffle 35 is provided at one end of the V-shaped support frame 34 away from the connecting column 33. The height of the connecting column 33 can be adjusted, and the V-shaped support frame 34 and the limit baffle 35 are driven to rise and fall by the connecting column 33. The V-shaped support frame 34 can be located below the piston rod, and the piston rod is supported by the V-shaped support frame 34 to ensure that the piston rod falls down due to loosening;

[0045] Both ends of the XYZ three-axis mobile platform 1 are slidably mounted on the main mounting frame 32, and both ends of the XYZ three-axis mobile platform 1 are provided with a fifth driving motor 36, and a driving gear 37 is fixedly mounted on the output shaft of the fifth driving motor 36. A rack 38 corresponding to the driving gear 37 is provided in the adjustment slot 3201 provided on the main mounting frame 32, and a pulley 39 is rotatably connected to the bottom of the driving gear 37, and the pulley 39 is slidably connected in the guide slot 3202 provided in the adjustment slot 3201. The movement of the pulley 39 is limited by the guide slot 3202 to ensure the movement stability of the pulley 39, and the driving gear 37 is driven to rotate by the fifth driving motor 36, and the driving gear 37 and the rack 38 are meshed. Through the meshing of the driving gear 37 and the rack 38, the driving pulley 39 slides in the guide slot 3202, and the sliding of the guide slot 3202 changes the position of the XYZ three-axis mobile platform 1 on the main mounting frame 32 to realize the handling operation of the piston rod.

[0046] Working principle:

[0047] The output of the fifth driving motor 36 drives the driving gear 37 to rotate, and the driving gear 37 is meshed with the rack 38, thereby driving the driving gear 37 to move in the adjustment slot 3201. During the movement of the driving gear 37, a pulling force is applied to the pulley 39. After the pulley 39 is subjected to the pulling force, it will slide in the guide slot 3202 along the guide slot 3202. At the same time, the top of the pulley 39 is rotationally connected to the driving gear 37, which does not affect the normal rotation of the driving gear 37. The position of the XYZ three-axis mobile platform 1 is changed by the sliding of the pulley 39, and the XYZ three-axis mobile platform 1 moves to the specified position to perform clamping operations and piston rod handling operations;

[0048] The output shaft of the third driving motor 12 drives the positive and negative screw rods 11 to rotate, and the positions of the two adjusting frames 10 are changed by the rotation of the positive and negative screw rods 11. The two adjusting frames 10 are driven to approach or move away from each other during the rotation of the positive and negative screw rods 11 through the meshing of the adjusting frame 10 and the positive and negative screw rods 11. The mutual approach or distance between the adjusting frames 10 drives the rectangular sliding frame 9 to move on the assembly frame 8, so that the two rectangular sliding frames 9 on the assembly frame 8 are approached or moved away from each other. The rectangular sliding frames 9 approach each other and drive the limiting rods 23 to approach each other. In the process of the rectangular sliding frames 9 approaching each other, the first clamping plate 16 and the second clamping plate 22 form a structure for clamping the piston rod, and the piston rod is clamped. The design of the limiting rod 23 can improve the clamping effect on the piston rod. The first clamping plate 16 and the second clamping plate 22 form a structure that approaches each other to clamp the piston rod. The first clamping plate 16 and the second clamping plate 22 form a structure that moves away from each other to realize the placement of the piston rod.

[0049] According to the diameter of the piston rod, the angles of the first clamping plate 16 and the second clamping plate 22 are adjusted respectively, and the pressure ring 17 and the hexagonal nut 18 are rotated in the opposite direction to loosen the structure composed of the pressure ring 17 and the hexagonal nut 18 from the screw rod 14, so that the first circular sleeve 15 can rotate outside the screw rod 14, change the central angle of the rectangular sliding frame 9 and the first clamping plate 16 The corresponding structure is changed, and the first clamping plate 16 is fixed after adjustment by the reverse rotation of the pressure ring 17 and the hexagonal nut 18. Similarly, the second clamping plate 22 and the second circular sleeve 19 are rotated and adjusted by the rotation and reverse rotation of the pressure ring 17 and the hexagonal nut 18 on the bolt 20. Through the cooperation of the first clamping plate 16 and the second clamping plate 22, a V-shaped structure with different angles is formed to clamp the piston rod of the diameter;

[0050] The output shaft of the first driving motor 5 drives the swing shaft 3 to rotate in the rotating shaft sleeve 2, changing the angle between the connecting block 4 and the XYZ three-axis moving platform 1. By rotating the second driving motor 7 in the connecting block 4, the angle between the assembly frame 8 and the connecting block 4 is changed, so that the piston rod can be placed horizontally or vertically, which greatly improves the clamping effect of the piston rod, can clamp the horizontal piston rod, can also clamp the vertical piston rod, and can also allow the piston rod to be processed in a horizontal or vertical shape;

[0051] The height of the lifting frame 26 is changed by turning the height adjustment rod 27. During the rotation of the height adjustment rod 27, the driving roller 28 will change its upper and lower position height to adapt to piston rods of different diameters, ensuring that the driving roller 28 can contact the side of the piston rod. The first clamping plate 16 and the second clamping plate 22 slightly loosen the piston rod, and the piston rod is fixed by the friction force of contact with the driving roller 28. The output shaft of the fourth driving motor 29 drives the driven wheel 31 and the driving roller 28 to rotate. During the rotation of the driving roller 28, the piston rod is driven to move in the structure composed of the first clamping plate 16 and the second clamping plate 22. During the movement of the piston rod in the structure composed of the first clamping plate 16 and the second clamping plate 22, the cutting tool can process different positions of the piston rod at the specified position.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A piston rod processing robot, comprising a rotating sleeve (2) fixedly mounted on the bottom of an XYZ three-axis moving platform (1), characterized in that: The rotating shaft sleeve (2) is rotatably connected with a swing shaft (3), and a connecting block (4) is fixedly connected to the side of the swing shaft (3) away from the XYZ three-axis moving platform (1). A first driving motor (5) is fixedly mounted on the surface of the rotating shaft sleeve (2), and the output shaft of the first driving motor (5) is fixedly connected to the rotating shaft part of the swing shaft (3). A fixed shaft seat (6) is fixedly mounted on the side of the connecting block (4) away from the swing shaft (3). A second driving motor (5) is arranged in the connecting block (4). The invention relates to a machine (7), wherein the output shaft of the second driving motor (7) is fixedly connected to the fixed shaft seat (6), the fixed shaft seat (6) is fixedly installed with an assembly frame (8) on the side away from the connecting block (4), the assembly frame (8) is movably provided with a rectangular sliding frame (9), the surface of the rectangular sliding frame (9) is fixedly installed with a positioning frame (10) located in the assembly frame (8), the assembly frame (8) is rotatably connected with a positive and negative threaded rod (11), and the positive and negative threaded rod (11) and the positioning frame (10) are rotatably connected. 0) threaded connection, a third drive motor (12) is arranged on the surface of the assembly frame (8), and the output shaft of the third drive motor (12) is fixedly connected to the positive and negative threaded screw (11), a fixed plate (13) is fixedly installed at the bottom of the rectangular sliding frame (9), a screw (14) is fixedly installed at the center axis position of the fixed plate (13), a first circular sleeve (15) is sleeved on the screw (14), and a first clamping plate (16) is arranged at the bottom of the first circular sleeve (15) The screw rod (14) is threadedly connected with a pressure ring (17) and a hexagonal nut (18); a second circular sleeve (19) is fixedly installed at the bottom of the first clamping plate (16); a bolt (20) is movably inserted in the second circular sleeve (19); a rotating ring (21) is movably sleeved outside the bolt (20); a second clamping plate (22) is fixedly installed at the bottom of the rotating ring (21); and a pressure ring (17) and a hexagonal nut (18) are also threadedly connected outside the bolt (20); The XYZ three-axis mobile platform (1) is installed on a main mounting frame (32), and another group of XYZ three-axis mobile platforms (1) is also arranged on the main mounting frame (32), a connecting column (33) is arranged at the bottom of the group of XYZ three-axis mobile platforms (1), a V-shaped support frame (34) is arranged on the surface of the connecting column (33), and a limit stopper (35) is arranged at one end of the V-shaped support frame (34) away from the connecting column (33), and both ends of the XYZ three-axis mobile platform (1) are slidably installed on the main mounting frame (32) A fifth driving motor (36) is disposed at both ends of the XYZ three-axis mobile platform (1); a driving gear (37) is fixedly mounted on the output shaft of the fifth driving motor (36); a rack (38) corresponding to the driving gear (37) is disposed in a positioning groove (3201) provided on the main mounting frame (32); a pulley (39) is rotatably connected to the bottom of the driving gear (37); and the pulley (39) is slidably connected to a guide groove (3202) provided on the positioning groove (3201).

2. A piston rod processing robot according to claim 1, characterized in that: A limiting rod (23) is fixedly mounted on the bottom of the second clamping plate (22), and the limiting rod (23) and the second clamping plate (22) are arranged parallel to each other.

3. The piston rod processing robot according to claim 1, characterized in that: A limiting block (24) is fixedly mounted on the surface of the pressure ring (17).

4. The piston rod processing robot according to claim 1, characterized in that: The screw rod (14) and the bolt (20) are both composed of a threaded portion and a non-threaded portion.

5. The piston rod processing robot according to claim 1, characterized in that: The length, width and thickness of the first clamping plate (16) and the second clamping plate (22) are all the same.

6. The piston rod processing robot according to claim 1, characterized in that: A limit block (24) is fixedly installed at the bottom of the fixed shaft seat (6), and the limit block (24) is located in the assembly frame (8). A positioning swivel (2401) is fixedly installed at the center position of the positive and negative threaded rods (11), and the positive and negative threaded rods (11) and the positioning swivel (2401) are all rotatably connected to the limit block (24).

7. The piston rod processing robot according to claim 1, characterized in that: Side frames (25) are arranged on both sides of the assembly frame (8), a lifting frame (26) is movably inserted in the side frame (25), a height adjustment rotating rod (27) is internally threadedly connected to the lifting frame (26), a driving roller (28) is rotatably connected to the bottom of the lifting frame (26), a fourth driving motor (29) is arranged in the lifting frame (26), an output shaft of the fourth driving motor (29) is externally connected to a driven wheel (31) through a driving belt (30), and the driven wheel (31) is located in the lifting frame (26) and is drivingly connected to the driving roller (28).

8. The piston rod processing robot according to claim 7, characterized in that: The driving roller (28) and the driven wheel (31) are coaxially arranged, and the driven wheel (31) passes through the lifting frame (26) and is connected to the rotating shaft portion of the driving roller (28).

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